diff --git a/src/Math-Tests-Complex/PMComplexNumberTest.class.st b/src/Math-Tests-Complex/PMComplexNumberTest.class.st
index 8c3a039c..d3766878 100644
--- a/src/Math-Tests-Complex/PMComplexNumberTest.class.st
+++ b/src/Math-Tests-Complex/PMComplexNumberTest.class.st
@@ -17,7 +17,7 @@ PMComplexNumberTest >> testAbs [
 	"self debug: #testAbs"
 
 	| c |
-	c := 6 i: -6.
+	c := 6 - 6 i.
 	self assert: c abs equals: 72 sqrt
 ]